<script setup lang="ts">
import { getGoodsByIdAPI } from '@/services/goods'
import type { GoodsItem } from '@/types/goods'
import { onLoad } from '@dcloudio/uni-app'
import { computed, ref } from 'vue'
import ServicePanel from './components/ServicePanel.vue'
import type {
  SkuPopupEvent,
  SkuPopupInstanceType,
  SkuPopupLocaldata,
} from '@/components/vk-data-goods-sku-popup/vk-data-goods-sku-popup'
import { useMemberStore } from '@/stores'
import { postMemberCartAPI } from '@/services/cart'
const memberInfo = useMemberStore()
// 获取屏幕底部边界到安全区域距离，防止安全区域底部的内容被手机底部黑色横杠遮挡
const { safeAreaInsets } = uni.getSystemInfoSync()
//声明用于接收商品详情数据的变量
const goods = ref<GoodsItem>()
//获取分类页面传递过来的id
const query = defineProps<{
  id: number
}>()
//获取商品详情数据
const getGoodsByIdData = async () => {
  //调用getGoodsByIdAPI函数
  const res = await getGoodsByIdAPI(query.id)
  goods.value = res.result
  localdata.value = {
    _id: res.result.id,
    goodsName: res.result.goodsName,
    goods_thumb: res.result.mainImg[0],
    spec_list: res.result.specs.map((item) => {
      return {
        name: item.name,
        list: item.values,
      }
    }),
    sku_list: res.result.skus.map((item) => {
      let nameArr: string[] = []
      item.specs.map((v) => {
        v.values.map((v2) => {
          nameArr.push(v2.name)
        })
      })
      return {
        _id: item.id,
        goods_id: res.result.id,
        goods_name: res.result.goodsName,
        image: item.picture,
        price: item.price * 100,
        sku_name_arr: nameArr,
        stock: item.inventory,
      }
    }),
  }
}
//定义变量用来保存轮播图当前下标
const currIndex = ref<number>(0)
//定义轮播图变化的函数
const Onchange: UniHelper.SwiperOnChange = (even) => {
  currIndex.value = even.detail!.current //将当前图片的下标赋值为currIndex
}
//大图预览
//轮播图中，图片的点击事件，url为图片的路径，实现点击图片是进行大图预览
const onTapImage = (url: string) => {
  //uni.previewImage调用大图预览的API
  uni.previewImage({
    current: url, //当前预览的大图链接
    urls: goods.value!.mainImg, //urls为预览图片的链接列表
  })
}
//用来保存弹出层组件的实例，对应<uni-popup ref="popup">中的popup，应用对象
const popup = ref<{
  //为popup对象添加open和close事件，type为弹出层的弹出方向，|竖线表示联合类型
  //下面表示type参数是可选的，然后它的取值可以是top或bottom或right或left
  open: (type?: UniHelper.UniPopupType) => void
  close: () => void
}>()
//页面加载事件
onLoad(() => {
  getGoodsByIdData()
})
//定义变量，用于控制sku组件的显示和隐藏
const showSku = ref(false)
//定义变量，用于保存商品的sku信息
const localdata = ref({} as SkuPopupLocaldata)
//定义一个枚举类型，用于控制按钮的模式
enum SkuMode {
  Both = 1,
  Cart = 2,
  Buy = 3,
}
const mode = ref<SkuMode>(SkuMode.Both)
const openSkupopup = (val: SkuMode) => {
  //先判断用户是否进行了登录，如果没有登录，则提示用户登录
  if (!memberInfo.profile) {
    uni.showModal({
      title: '温馨提示',
      content: '请先登录后再添加商品到购物车',
      success: (success) => {
        if (success.confirm) {
          uni.navigateTo({
            url: '/pages/login/login',
          })
        }
      },
    })
  } else {
    showSku.value = true
    mode.value = val
  }
}
const skuPopupRef = ref<SkuPopupInstanceType>()
const selectValueText = computed(() => {
  return skuPopupRef.value?.selectArr?.join(' ').trim() || '请选择商品规格'
})
//添加商品到购物车事件
const onAddCart = async (ev: SkuPopupEvent) => {
  let cart = { userId: memberInfo.profile.id, skuId: ev._id, goodsCount: ev.buy_num }
  await postMemberCartAPI(cart)
  uni.showToast({
    title: '添加成功',
    icon: 'success',
  })
  showSku.value = false
}

//立即购买
const onBuyNow = async (ev: SkuPopupEvent) => {
  uni.navigateTo({ url: `/pagesOrder/create/create?skuId=${ev._id}&goodsCount=${ev.buy_num}` })
}
</script>

<template>
  <scroll-view scroll-y class="viewport">
    <!-- 基本信息 -->
    <view class="goods">
      <!-- 商品主图 -->
      <view class="preview">
        <swiper circular @change="Onchange">
          <swiper-item v-for="item in goods?.mainImg" :key="item">
            <image mode="aspectFill" :src="item" @tap="onTapImage(item)" />
          </swiper-item>
        </swiper>
        <view class="indicator">
          <text class="current">{{ currIndex + 1 }}</text>
          <text class="split">/</text>
          <text class="total">{{ goods?.mainImg?.length }}</text>
        </view>
      </view>

      <!-- 商品简介 -->
      <view class="meta">
        <view class="price">
          <text class="symbol">¥</text>
          <text class="number">{{ goods?.goodsPrice }}</text>
        </view>
        <view class="name ellipsis">{{ goods?.goodsName }} </view>
        <view class="desc"> {{ goods?.goodsDesc }} </view>
      </view>

      <!-- 操作面板 -->
      <view class="action">
        <view class="item arrow" @tap="openSkupopup(SkuMode.Both)">
          <text class="label">选择</text>
          <text class="text ellipsis"> {{ selectValueText }} </text>
        </view>
        <view class="item arrow" @tap="popup?.open('bottom')">
          <text class="label">服务</text>
          <text class="text ellipsis"> 无忧退 快速退款 免费包邮 </text>
        </view>
      </view>
    </view>

    <!-- 商品详情 -->
    <view class="detail panel">
      <view class="title">
        <text>详情</text>
      </view>
      <view class="content">
        <!-- 图片详情 -->
        <image v-for="item in goods?.picturesArr" mode="widthFix" :src="item" :key="item" />
      </view>
    </view>
  </scroll-view>

  <!-- 用户操作 -->
  <view class="toolbar" :style="{ paddingBottom: safeAreaInsets?.bottom + 'px' }">
    <view class="icons">
      <button class="icons-button"><text class="icon-heart"></text>收藏</button>
      <button class="icons-button" open-type="contact">
        <text class="icon-handset"></text>客服
      </button>
      <navigator class="icons-button" url="/pages/cart/cart" open-type="switchTab">
        <text class="icon-cart"></text>购物车
      </navigator>
    </view>
    <view class="buttons">
      <view class="addcart" @tap="openSkupopup(SkuMode.Cart)"> 加入购物车 </view>
      <view class="buynow" @tap="openSkupopup(SkuMode.Buy)"> 立即购买 </view>
    </view>
  </view>

  <uni-popup ref="popup" type="bottom" background-color="#fff">
    <ServicePanel @close="popup?.close()" />
  </uni-popup>
  <vk-data-goods-sku-popup
    v-model="showSku"
    :localdata="localdata"
    :mode="mode"
    add-cart-background-color="#ffa868"
    buy-now-background-color="#3c69dc"
    @add-cart="onAddCart"
    @buy-now="onBuyNow"
    ref="skuPopupRef"
  />
</template>

<style lang="scss">
page {
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.viewport {
  background-color: #f4f4f4;
}

.panel {
  margin-top: 20rpx;
  background-color: #fff;
  .title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90rpx;
    line-height: 1;
    padding: 30rpx 60rpx 30rpx 6rpx;
    position: relative;
    text {
      padding-left: 10rpx;
      font-size: 28rpx;
      color: #333;
      font-weight: 600;
      border-left: 4rpx solid #3c69dc;
    }
    navigator {
      font-size: 24rpx;
      color: #666;
    }
  }
}

.arrow {
  &::after {
    position: absolute;
    top: 50%;
    right: 30rpx;
    content: '\e6c2';
    color: #ccc;
    font-family: 'erabbit' !important;
    font-size: 32rpx;
    transform: translateY(-50%);
  }
}

/* 商品信息 */
.goods {
  background-color: #fff;
  .preview {
    height: 750rpx;
    position: relative;
    .image {
      width: 750rpx;
      height: 750rpx;
    }
    .indicator {
      height: 40rpx;
      padding: 0 24rpx;
      line-height: 40rpx;
      border-radius: 30rpx;
      color: #fff;
      font-family: Arial, Helvetica, sans-serif;
      background-color: rgba(0, 0, 0, 0.3);
      position: absolute;
      bottom: 30rpx;
      right: 30rpx;
      .current {
        font-size: 26rpx;
      }
      .split {
        font-size: 24rpx;
        margin: 0 1rpx 0 2rpx;
      }
      .total {
        font-size: 24rpx;
      }
    }
  }
  .meta {
    position: relative;
    border-bottom: 1rpx solid #eaeaea;
    .price {
      height: 130rpx;
      padding: 25rpx 30rpx 0;
      color: #fff;
      font-size: 34rpx;
      box-sizing: border-box;
      background-color: #35c8a9;
    }
    .number {
      font-size: 56rpx;
    }
    .brand {
      width: 160rpx;
      height: 80rpx;
      overflow: hidden;
      position: absolute;
      top: 26rpx;
      right: 30rpx;
    }
    .name {
      max-height: 88rpx;
      line-height: 1.4;
      margin: 20rpx;
      font-size: 32rpx;
      color: #333;
    }
    .desc {
      line-height: 1;
      padding: 0 20rpx 30rpx;
      font-size: 24rpx;
      color: #cf4444;
    }
  }
  .action {
    padding-left: 20rpx;
    .item {
      height: 90rpx;
      padding-right: 60rpx;
      border-bottom: 1rpx solid #eaeaea;
      font-size: 26rpx;
      color: #333;
      position: relative;
      display: flex;
      align-items: center;
      &:last-child {
        border-bottom: 0 none;
      }
    }
    .label {
      width: 60rpx;
      color: #898b94;
      margin: 0 16rpx 0 10rpx;
    }
    .text {
      flex: 1;
      -webkit-line-clamp: 1;
    }
  }
}

/* 商品详情 */
.detail {
  padding-left: 20rpx;
  .content {
    margin-left: -20rpx;
    .image {
      width: 100%;
    }
  }
  .properties {
    padding: 0 20rpx;
    margin-bottom: 30rpx;
    .item {
      display: flex;
      line-height: 2;
      padding: 10rpx;
      font-size: 26rpx;
      color: #333;
      border-bottom: 1rpx dashed #ccc;
    }
    .label {
      width: 200rpx;
    }
    .value {
      flex: 1;
    }
  }
}

/* 同类推荐 */
.similar {
  .content {
    padding: 0 20rpx 200rpx;
    background-color: #f4f4f4;
    display: flex;
    flex-wrap: wrap;
    .goods {
      width: 340rpx;
      padding: 24rpx 20rpx 20rpx;
      margin: 20rpx 7rpx;
      border-radius: 10rpx;
      background-color: #fff;
    }
    .image {
      width: 300rpx;
      height: 260rpx;
    }
    .name {
      height: 80rpx;
      margin: 10rpx 0;
      font-size: 26rpx;
      color: #262626;
    }
    .price {
      line-height: 1;
      font-size: 20rpx;
      color: #cf4444;
    }
    .number {
      font-size: 26rpx;
      margin-left: 2rpx;
    }
  }
  navigator {
    &:nth-child(even) {
      margin-right: 0;
    }
  }
}

/* 底部工具栏 */
.toolbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  background-color: #fff;
  height: 100rpx;
  padding: 0 20rpx var(--window-bottom);
  border-top: 1rpx solid #eaeaea;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: content-box;
  .buttons {
    display: flex;
    & > view {
      width: 220rpx;
      text-align: center;
      line-height: 72rpx;
      font-size: 26rpx;
      color: #fff;
      border-radius: 72rpx;
    }
    .addcart {
      background-color: #ffa868;
    }
    .buynow,
    .payment {
      background-color: #3c69dc;
      margin-left: 20rpx;
    }
  }
  .icons {
    padding-right: 10rpx;
    display: flex;
    align-items: center;
    flex: 1;
    .icons-button {
      flex: 1;
      text-align: center;
      line-height: 1.4;
      padding: 0;
      margin: 0;
      border-radius: 0;
      font-size: 20rpx;
      color: #333;
      background-color: #fff;
      &::after {
        border: none;
      }
    }
    text {
      display: block;
      font-size: 34rpx;
    }
  }
}
</style>
